POWER STEERING SYSTEM


  1. OUTLINE


    1. A vehicle speed sensing type Electric Power Steering (EPS) system is used.

    2. This system generates assist torque using a power steering motor and a reduction mechanism that are mounted on the steering column assembly to assist the driver's steering.

    3. A rack and pinion type steering gear assembly is used.

  2. SPECIFICATION


    1. TMC Made

      Item Specification
      Power Steering Type Electric Power Steering (EPS)
      Steering Gear Type Rack and Pinion
      Steering Gear Ratio (Overall) 1: 14.3
      No. of Turns Lock to Lock 3.02
      Rack Stroke 151 mm (5.94 in.), 135 mm (5.31 in.)

    2. TMMF Made

      Item Specification
      Power Steering Type Electric Power Steering (EPS)
      Steering Gear Type Rack and Pinion
      Steering Gear Ratio (Overall) 1: 14.1*1, 1: 14.3*2
      1: 12.8*3, 1: 13.2*4
      No. of Turns Lock to Lock 3.02*5, 2.69*3
      2.28*4
      Rack Stroke 151 mm (5.94 in.), 127.8 mm (5.03 in.)*4

      *1: Models with Raised Vehicle Height

      *2: Models with 175/65 R14 tires or 185/60R15 tires and without Raised Vehicle Height

      *3: Models with 175/70 R14 tires or 175/65 R15 tires

      *4: Models with 195/50R16 tires

      *5: Models with 175/65 R14 tires or 185/60R15 tires

  3. MAIN FEATURES


    1. The EPS system has the following features:


      1. The EPS system activates the power steering motor only when the driver turns the steering wheel. This reduces the energy consumption in a straight driving situation, resulting in excellent fuel economy.

      2. The torque sensor, power steering motor and reduction mechanism are integrated into the steering column assembly, giving a simple and compact structure.

      3. Unlike the conventional hydraulic power steering system, this system excels in serviceability because it does not require pipes, vane pump, pulley and power steering fluid.